Flush-valve seat for flushing-tanks.



P. M. NEVIUS. PLUSH VALVE SEAT FOR PLU$HING TANKS.

APPLICATION FILED APR. 13, 1908'.

Patented Apr. 6, 1909.

awwewto'a 60w Witnesses 1n: nonms PETERS co, WASHINGTON, D. u.

PETER M. NEVIUS, O1 SEAT TL l5, WA S H l N G 'l O N.

FLUSH-VALVE SEAT FOE FL'USIIIQYG-TANKS.

Specification of Letters Patent.

Application filed April 13, 1908.

Patented April 6, 1909.

Serial No. 26,85.

To all whom it may concern:

Be it known that I, PE "151 citizen of the United States, residing at eattlc, in the county of King and State ol ashington, have invented certain new and user l Improvements in Flush Valve Seats 1. r Flushing-Tanks; and I do declare the following to be a lull, clear, and exact description 01' the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to flush valve seats and more particularly to a valve seat to be used in connection with the flushing tank shown in connection with the water supply and drainage apparatus described in my Patent, No. 851,100 issued April 23, 1907, whereby it is desirable that a valve be provided that will permit all of the water to be drained from the tank after each flush.

In the above mentioned drainage apparatus the flushing tank is emptied each time the apparatus is used and with the ordinary valve seat about one-half inch of water is always left in the tank after each operation.

It is to obviate this difi iculty that I have provided the herein described invention which consists ol a valve seat havin an upstanding flange and a flange adapted to lit in close engagement with the bottom of the tank, said upstanding flange having drilled therein a hole, the lower side oi said hole being substantially flush with the bottom ol said tank W hile herein I have described this valve as particularly adapted to the apparatus described in the above mentioned patent, it is understood that I do not limit myself to this particular use but may use the same in connection with any tank wherein valve seat is used.

For the above mentioned objects and uses and for other objects which will appear as the description proceeds, my invention consists of certain novel arrangements and combinations of parts of which the herein described valve seat is one of many possible embodiments.

lt hile herein I have described minute details, I do not limit myself to these as the details of construction and arrangement may be greatly varied without departing from the spirit and scope ol the invention.

In the annexed drawings forming a part oi this specification, Figure 1 is a longitudinal sectional View showing my valve applied to the flushing tank described in the above men- M. NEVIUS, a

2 is a side elevation tioned patent, and, l of the valve seat.

lie'l'erring more particularly to the draw ings which are for illustrative purposes only and thereto not drawn to any particular scale, my valve seat 1 is shown in connection with a tank provided with an inlet opening 3 near the upper edge thereof, and a siphon valve 4- adapted to seat in the valve seat 1. The valve seat 1 is securely iastened to the opening 5 in the bottom 6 ol' the tank 1 and is held lirn'ily in engagement therewith by means of nut 7, and is provided with a discharge pipe 8 as is usual in devices of this kind.

The siphon valve l is provided with a pivoted lever 9 by which the same may be operated. The valve seat 1 is provided with a laterally extending flange 10 adapted to bear against the bottom 6 and an upwardly outwardly extending flange 11 adapted to receive upon its upper face the cooperating lace ol' the siphon valve 1. Intermediate the flanges 10 and 11, I provide a small perforation 12 as low as possible against the flange 10 whereby the lower part of said perforation is as normally flush with the bottom 6 as it is possible to make it without having an opening midway oi the bottom of the perforation. The valve 10 may we slightly sunk in the bottom 6 if desired. It will be seen that when the tank is emptied that without this perl'oration, there would be about one-hall inch of water left in the bottom of the tank. This would be undesirable in a device of this kind which is designed to be used out of doors where tanks which remain full of water would become frozen up. i i ith a valve provided with the perforation 12, the water which would otherwise remain in the bottom of the tank up to the top of the flange 11 is drained out and passed down the pipe 8. Another advantage of this device is that it permits flushing both before and after the device is used. lhis is particularly advantageous in either very cold or very warm weather. It

is understood that this valve seat may be used in connection. with any tank from which all 01 the water is to be drained. It is thought that the operation and advantages of my invention will be understood without further explanation.

Having thus described my invention, what I claim as new and desire to secure by U. S. Letters-Patent is In combination with a water tank having an opening in the bottom portion, a valve seat formed with a flared head, a laterally extending flange secured in the tank opening with the upper face of the flange held flush with the face of the tank bottom, such Valve seat being formed with a downwardly inl same in position over the valve-seat.

clined opening to drain the tank of water, In testimony whereof I have hereunto set the upper end of said opening being disposed I my hand in presence of two subscribing witabove the flange, and the lower end of said nesses.

opening being disposed on a plane below the bottom of the tank and continuously eonnesting said tank with the discharge pipe, 5 means for securing the valve seat to the tank, i a goose-neck valve having an enlarged head conforming to the shape of the valve seat,

5 said valve being seatable on the valve-seat so that it will not obstruct the flow of Water through the drainage opening, and means pivotally secure d to the valve for holding the PETER M. NEVIUS Witnesses E. P. DEARBORN, A. E. KOEPFLE. 

